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Product Overview
A hidden electrical arc in a 400V three-phase commercial system doesn't just cause a spark; it creates a catastrophic plasma event that can incinerate a facility within minutes. Standard RCDs and MCBs are completely blind to these high-resistance arc faults caused by degraded insulation or crushed heavy-duty cables. The CHNAILE Intelligent 3-Phase Arc Fault Detection Device (AFDD) is the ultimate technological countermeasure. By embedding an ultra-fast microprocessor into a 4-pole framework (3P+N), it continuously cross-analyzes the high-frequency signatures of all three live phases. Delivering 20A continuous power per phase alongside 30mA life-saving leakage detection, this IEC 62606 compliant unit offers impenetrable 4-in-1 protection for high-value commercial and industrial investments.
Technical Parameters
Device Category: | 3-Phase Arc Fault Detection Device (AFDD / AFCI) |
|---|---|
Integrated Functions: | 4-in-1 (Arc Fault + Earth Leakage + Short-Circuit + Overload) |
Poles Configuration: | 3P+N (Three Synchronized Green Toggles + Smart N-Module) |
Rated Current (In): | 20A per phase (Engineered for heavy 3-phase commercial loads) |
Rated Operating Voltage (Ue): | AC 400V (50Hz) |
Earth Leakage Sensitivity (I∆n): | 30mA (Strict human life-protection grade) |
Short-Circuit Breaking Capacity (Icu): | 6000A (6kA) |
Diagnostic Interface: | Microprocessor LED Array (SET, RUN, ERR) & Test/Reset Buttons |
Standard Compliance: | IEC 62606 (AFDD) / IEC 61009-1 (RCBO), CE Certified |
1. Elite Tri-Phase Fire Eradication Technology
Complex 3-Phase Arc Analysis: Monitoring a single-phase line for arcs is standard; monitoring three intersecting 400V phases requires massive processing power. The CHNAILE internal DSP (Digital Signal Processor) continuously filters out the "safe" background arcing of heavy 3-phase motors and contactors, surgically identifying and tripping only when a genuine, dangerous carbon-tracking arc fault occurs.
Synchronized 4-Wire Severance: Upon detecting a lethal arc, a 30mA ground fault, or a 6kA short circuit, the mechanically linked triple green toggles and the neutral module disconnect simultaneously. This absolute galvanic isolation entirely removes 400V electrical potential from the hazardous zone, protecting commercial maintenance crews.
Commercial-Grade LED Diagnostics: In complex 3-phase distribution boards, diagnosing a trip reason saves hours of downtime. The interactive panel features a 'RUN' indicator for active scanning, an 'ERR' LED for fault notification, and intuitive 'T' (Test) / 'R' (Return) buttons, allowing facility managers to instantly pinpoint whether the trip was an arc, a leak, or a short.
2. Heavy-Duty Commercial Architecture
High-Density Thermal Management: Processing three phases of 20A continuous current while running an active microprocessor generates internal heat. The chassis is molded from premium, V0-rated thermosetting polymers with optimized airflow channels, ensuring the smart-chip remains thermally stable even inside sealed, outdoor commercial enclosures.
Anti-Loosening Industrial Terminals: Arc faults are primarily caused by loose connections vibrating over time. To combat this, the deep-set screw terminals are engineered to accept thick 3-phase industrial wiring, providing maximum clamping torque to prevent the very terminal creep that leads to electrical fires.
3. Target Application Scenarios
Due to its extreme technological barrier and 400V 3-phase capacity, this AFDD is exclusively specified by elite EPC contractors for:
22kW Commercial AC EV Chargers: Serving as the mandatory, fire-proof main disconnect for 3-phase AC fast-charging pedestals in public parking hubs and fleet depots.
Commercial Kitchens & Bakeries: Providing vital protection where heavy 3-phase ovens and industrial mixers are subject to constant heat, moisture, and rodent-induced cable damage.
Advanced R&D Laboratories: Safeguarding multi-million-dollar 3-phase testing equipment and highly flammable chemical environments from invisible wiring sparks.
Luxury Commercial High-Rises: Acting as the ultimate safety upgrade for sub-mains powering premium server rooms, archives, and automated HVAC control panels.
4. Global B2B Partnership with CHNAILE Factory
Factory-Direct 3-Phase Smart Tech: Manufacturing a reliable 3-Phase AFDD is a capability held by only a few top-tier global factories. Sourcing directly from our R&D lines gives your distribution business a massive technological and pricing monopoly in your regional market.
Exhaustive IEC 62606 Arc Validation: We do not gamble with commercial fire safety. Every 3-phase unit undergoes rigorous computerized testing, simulating hundreds of varied 400V arc-fault scenarios alongside strict 30mA leakage calibration before export.
Premium OEM for Charging & Solar Brands: We actively partner with global EV charger manufacturers and commercial solar integrators, offering bespoke faceplate laser-printing and specialized smart-grid integration solutions.
